Instituto de Ciencia Molecular (ICMol), Universidad de Valencia, Catedrático José Beltrán 2, Catedrático José Beltrán, 46980, Paterna, Spain.
Nat Chem. 2010 Dec;2(12):1031-6. doi: 10.1038/nchem.898. Epub 2010 Nov 23.
Although the coexistence of superconductivity and ferromagnetism in one compound is rare, some examples of such materials are known to exist. Methods to physically prepare hybrid structures with both competing phases are also known, which rely on the nanofabrication of alternating conducting layers. Chemical methods of building up hybrid materials with organic molecules (superconducting layers) and metal complexes (magnetic layers) have provided examples of superconductivity with some magnetic properties, but not fully ordered. Now, we report a chemical design strategy that uses the self assembly in solution of macromolecular nanosheet building blocks to engineer the coexistence of superconductivity and magnetism in [Ni(0.66)Al(0.33)(OH)(2)][TaS(2)] at ∼4 K. The method is further demonstrated in the isostructural [Ni(0.66)Fe(0.33)(OH)(2)][TaS(2)], in which the magnetic ordering is shifted from 4 K to 16 K.
虽然超导性和铁磁性共存于一种化合物中很少见，但已知存在一些这样的材料的例子。也有物理制备具有两种竞争相的混合结构的方法，这依赖于交替的导电层的纳米制造。使用有机分子（超导层）和金属配合物（磁性层）构建混合材料的化学方法已经提供了一些具有磁性的超导性的例子，但不是完全有序的。现在，我们报告了一种化学设计策略，该策略使用溶液中大分子纳米片构建块的自组装来工程化[Ni(0.66)Al(0.33)(OH)(2)][TaS(2)]中超导性和铁磁性共存于约 4 K。该方法在等结构的[Ni(0.66)Fe(0.33)(OH)(2)][TaS(2)]中得到了进一步的证明，其中磁性有序从 4 K 移到了 16 K。
